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English definition of “guard”

guard

noun [C]  /ɡɑrd/ us  
a person or group of people whose job it is to protect a person, place, or thing from danger or attack, or to prevent a person such as a criminal from escaping: prison guards Armed guards were posted at every exit. In sports, a guard is a player who supports and defends other players of his or her team.
(Definition of guard from the Cambridge Academic Content Dictionary © Cambridge University Press)
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